step drill的意思|示意

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step drill相关短语

1、 step drill with four edges 四刃阶梯钻

2、 drilling with step drill 阶梯钻削

3、 step-drill 阶梯钻头

4、 stair-step drill reamer 阶梯式钻铰刀

5、 two-step taper shank drill 两级锥柄钻头

6、 step feed drill attachment 分级进给钻削附件

7、 Step-Core-drill 钻

8、 drilling with step core drill 阶梯扩孔

9、 counterboring with step core drill 阶梯扩孔